TMD eddy current damper damping device

Abstract

The utility model discloses a TMD eddy current damper damping device, which relates to the field of constructional engineering and comprises a base, a sliding seat, a connecting seat, two viscous dampers and two groups of mass blocks. N sliding sleeves are mounted on the sliding seat, N through holes are formed in the connecting seat, N guide rods are mounted at the top of the base, and the upper ends of the guide rods sequentially penetrate through the corresponding sliding sleeves and the through holes; the mass blocks are supported through the threaded rings, when the mass blocks are removed, the mass blocks can be removed only by pulling the mass blocks and separating the mass blocks from the threaded rings, each mass block is supported by the two threaded rings, the mass blocks can be removed, and the mass blocks can be conveniently removed. And after the lower-layer mass block is taken out, the upper-layer mass block does not fall, so that the mass blocks can be conveniently adjusted, the performance of the damper is optimized, and the structural vibration under the specific frequency can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the field of construction engineering, and in particular relates to a TMD eddy current damper shock absorbing device. Background Art

[0002] The Ethiopia GCH project is located at the top of YEKA Mountain in Addis Ababa. The wind load varies greatly, and the special-shaped building structure and special functional building have large vertical vibration acceleration. The shaking of the building will bring discomfort and even insecurity to the users. The project department decided to use the advanced technology of TMD eddy current dampers at home and abroad to meet the particularity of the building. This technology is used for the first time in Ethiopia. Therefore, the application effect of this technology is of great significance, which will be a major innovation in the field of construction engineering in Ethiopia.

[0003] In addition, the vertical vibration acceleration is large for tall structures, long-span corridors, large bridges, special cantilever structures, and special-shaped buildings, and their force has a significant impact on buildings and structures. In order to effectively reduce the inertial force of the structure and meet the maximum comfort requirements of the user population, TMD technology has a bright future in the field of national construction engineering in Ethiopia.

[0004] At present, in order to optimize the performance of the damper so that it can effectively reduce the structural vibration at a specific frequency, the device will adjust the mass block. There are currently two commonly used adjustment methods:

[0005] One is to remove an existing mass block and replace it with a block of different mass, and the other is to add or remove pieces of mass (such as metal pieces) to change the total mass.

[0006] Since the mass blocks are fixed in series by bolts, the bolts need to be disassembled regardless of the method, and the replacement efficiency is low. Utility Model Content

[0007] In view of the problem that in the two commonly used adjustment methods, the mass blocks are fixed in series by bolts, and both methods require the bolts to be disassembled, resulting in low replacement efficiency, the utility model provides a TMD eddy current damper shock absorbing device.

[0008] The utility model solves the technical problem by adopting the following scheme: a TMD eddy current damper shock absorbing device, comprising a base, a sliding seat, a connecting seat, two viscous dampers and two sets of mass blocks;

[0009] N sliding sleeves are installed on the sliding seat, N through holes are opened on the connecting seat, and N guide rods are installed on the top of the base, and the upper ends of the guide rods pass through the corresponding sliding sleeves and through holes in sequence;

[0010] The bottom end of the viscous damper is mounted on the base, and the upper end thereof is hinged to the sliding seat;

[0011] A spring is sleeved on the guide rod, and the spring is located between the base and the sliding seat;

[0012] The sliding seat and the connecting seat are detachably connected via a connecting assembly;

[0013] A group of mass blocks is arranged between two adjacent guide rods, and the number of mass blocks in the group is N;

[0014] A notch is provided in the mass block, inner slide grooves are provided on both sides of the notch, at least one threaded rod is provided in the notch, and the upper end of the threaded rod is detachably connected to the sliding seat;

[0015] The threaded rod is threadedly connected with N threaded rings, the N threaded rings are respectively arranged corresponding to the N mass blocks, and the threaded rings are slidably arranged between two corresponding inner sliding grooves.

[0016] Preferably, a stud is welded on the top end of the guide rod, and an adjusting nut is threadedly connected to the stud.

[0017] Preferably, the upper end of the threaded rod passes through a circular hole formed in the sliding seat and is threadedly connected with a connecting nut.

[0018] Preferably, the connecting assembly includes two angle seats, and bolts are arranged in the bottom mounting holes of the angle seats, and the bolts are threadedly connected to the thread grooves provided on the top of the sliding seat.

[0019] Preferably, two ball screws are installed on the outer side of the threaded ring, and positioning holes are opened in the inner slide groove corresponding to the positions of the ball screws, and the steel balls of the ball screws are arranged in the positioning holes.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model supports the mass block through the threaded ring. When removing the mass block, it is only necessary to pull the mass block to separate the mass block from the threaded ring, and the mass block can be removed. Each mass block is supported by two threaded rings. After the lower mass block is taken out, the upper mass block will not fall, thereby facilitating the adjustment of the mass block and optimizing the performance of the damper, so that it can effectively reduce the structural vibration at a specific frequency.

[0022] 2. The utility model provides a threaded rod and a threaded ring, and can adjust the distance between two adjacent threaded rings according to the size of the mass block, thereby improving the applicability of the device.

[0023] 3. The utility model can fix the position of the mass block by arranging the ball screw, so that the mass block will not slip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is one of the three-dimensional structural schematic diagrams of the utility model;

[0025] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in top view.

[0027] In the figure: 1 base, 2 sliding seat, 21 sliding sleeve, 3 connecting seat, 4 guide rod, 51 stud, 52 adjusting nut, 61 angle seat, 62 bolt, 7 spring, 81 threaded rod, 82 connecting nut, 83 threaded ring, 84 ball screw, 9 mass block, 91 inner slide groove, 92 positioning hole, 10 viscous damper, 11 hinge seat. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] See also Figure 1-3 The utility model provides a technical solution of a TMD eddy current damper shock absorbing device:

[0030] Embodiment 1:

[0031] according to Figure 1-3 As shown, it includes a base 1, a sliding seat 2, a connecting seat 3, two viscous dampers 10 and two groups of mass blocks 9.

[0032] N sliding sleeves 21 are installed on the sliding seat 2, N through holes are opened on the connecting seat 3, and N guide rods 4 are installed on the top of the base 1. The upper ends of the guide rods 4 pass through the corresponding sliding sleeves 21 and the through holes in turn, so that the connecting seat 3 and the sliding seat 2 can slide up and down along the guide rods 4.

[0033] A stud 51 is welded to the top end of the guide rod 4 , and an adjusting nut 52 is threadedly connected to the stud 51 , so that the connecting seat 3 and the sliding seat 2 will not be separated from the guide rod 4 .

[0034] The bottom end of the viscous damper 10 is mounted on the base 1 , and the upper end thereof is hinged to a hinge seat 11 through a pin shaft. The hinge seat 11 is mounted on the bottom of the sliding seat 2 .

[0035] A spring 7 is sleeved on the guide rod 4 , and the spring 7 is located between the base 1 and the sliding seat 2 .

[0036] The sliding seat 2 and the connecting seat 3 are detachably connected via a connecting assembly, and the specific disassembly method is: the connecting assembly includes two angle seats 61, and a bolt 62 is arranged in the bottom mounting hole of the angle seat 61, and the bolt 62 is threadedly connected to the thread groove opened on the top of the sliding seat 2. The connecting seat 3 and the sliding seat 2 are connected and fixed by the angle seats 61 and the bolts 62, so that the connecting seat 3 can move up and down with the movement of the sliding seat 2.

[0037] A group of mass blocks 9 is arranged between two adjacent guide rods 4. The number of mass blocks 9 in a group is N. The number of mass blocks 9 in a group can be adjusted according to the size of the mass blocks 9 and actual needs.

[0038] A slot is provided in the mass block 9, and inner slide grooves 91 are provided on both sides of the slot. At least one threaded rod 81 is provided in the slot. In this embodiment, there are two threaded rods 81 in one slot. The upper end of the threaded rod 81 is detachably connected to the sliding seat 2. The specific disassembly method is: the upper end of the threaded rod 81 passes through the circular hole provided in the sliding seat 2 and is threadedly connected with a connecting nut 82.

[0039] N threaded rings 83 are threadedly connected to the threaded rod 81. By arranging the threaded rod 81 and the threaded rings 83, the distance between two adjacent threaded rings 83 can be adjusted according to the size of the mass block 9, thereby improving the applicability of the device.

[0040] N threaded rings 83 are respectively arranged corresponding to N mass blocks 9, and the threaded ring 83 is slidably arranged between two corresponding inner grooves 91. The mass block 9 is supported by the threaded ring 83. When removing the mass block 9, it is only necessary to pull the mass block 9 to separate the mass block 9 from the threaded ring 83, and the mass block 9 can be removed. Each mass block 9 is supported by two threaded rings 83. After the lower mass block 9 is taken out, the upper mass block 9 will not fall, thereby facilitating the adjustment of the mass block 9 and optimizing the performance of the damper 10, so that it can effectively reduce the structural vibration at a specific frequency.

[0041] Embodiment 2:

[0042] On the basis of the first embodiment, Figure 3 As shown, two ball screws 84 are installed on the outer side of the threaded ring 83, and a positioning hole 92 is opened in the inner slide groove 91 corresponding to the position of the ball screw 84. The steel ball of the ball screw 84 is set in the positioning hole 92 to fix the position of the mass block 9 so that the mass block 9 will not slip.

Claims

1. A TMD eddy current damper shock absorbing device, comprising a base, a sliding seat, a connecting seat, two viscous dampers and two sets of mass blocks; N sliding sleeves are installed on the sliding seat, N through holes are opened on the connecting seat, and N guide rods are installed on the top of the base, and the upper ends of the guide rods pass through the corresponding sliding sleeves and through holes in sequence; The bottom end of the viscous damper is mounted on the base, and the upper end thereof is hinged to the sliding seat; A spring is sleeved on the guide rod, and the spring is located between the base and the sliding seat; Features: The sliding seat and the connecting seat are detachably connected via a connecting assembly; A group of mass blocks is arranged between two adjacent guide rods, and the number of mass blocks in the group is N; A notch is provided in the mass block, inner slide grooves are provided on both sides of the notch, at least one threaded rod is provided in the notch, and the upper end of the threaded rod is detachably connected to the sliding seat; The threaded rod is threadedly connected with N threaded rings, the N threaded rings are respectively arranged corresponding to the N mass blocks, and the threaded rings are slidably arranged between two corresponding inner sliding grooves.

2. The TMD eddy current damper vibration reduction device according to claim 1, characterized in that: A stud is welded on the top end of the guide rod, and an adjusting nut is threadedly connected on the stud.

3. The TMD eddy current damper vibration reduction device according to claim 1, characterized in that: The upper end of the threaded rod passes through a circular hole provided in the sliding seat and is threadedly connected with a connecting nut.

4. The TMD eddy current damper vibration reduction device according to claim 1, characterized in that: The connecting assembly comprises two angle seats, and bolts are arranged in the mounting holes at the bottom of the angle seats, and the bolts are threadedly connected with the thread grooves provided at the top of the sliding seat.

5. The TMD eddy current damper vibration reduction device according to claim 1, characterized in that: Two ball screws are installed on the outer side of the threaded ring, and positioning holes are opened in the inner slide groove corresponding to the positions of the ball screws, and the steel balls of the ball screws are arranged in the positioning holes.

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